(202b) Renewable Ammonia for a Sustainable Energy Future: The Case of Maritime Transportation.
AIChE Annual Meeting
2023
2023 AIChE Annual Meeting
Process Development Division
Decarbonization for Ammonia Production
Monday, November 6, 2023 - 4:00pm to 4:30pm
In this work, two different ammonia production processes were simulated: the traditional one, i.e., the Haber-Bosh process using methane as raw material and a novel one based on green hydrogen production via electrolysis. Starting from the material and energy balances obtained by process simulation, CAPEX and OPEX were calculated and three indicators assessing sustainability performance have been evaluated. Well-established indicators, such as Energy Return On Energy Invested (EROEI), the Levelized Cost of Ammonia (LCOA), and the Life Cycle Assessment (LCA), allowed the comparison between the different processes simulated from an energetic, economic, and environmental viewpoint, respectively. The indicatorsâ outcomes indicate that the most convenient process in terms of energetic performance is the green hydrogen-based with electrical energy obtained from a green energy mix, counterbalanced by a higher cost of ammonia produced via green hydrogen. Environmental assessment highlighted that a trade-off must be found in order to select the most environmentally friendly production pathway.
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